One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,9,12)(7,10,14,18)(8,11,16,20)(13,17,15,19)(21,22,25,29,26,30,27,23)(24,28,34,36,33,32,35,31)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23)(22,27)(24,31)(25,30)(26,29)(28,35)(32,34)(33,36) involution — undirected(2,4)(5,8,9,16)(6,11,12,20)(7,13,14,15)(10,17,18,19)(21,24,26,33)(22,28,30,32)(23,31,29,36)(25,34,27,35)(8,16)(11,20)(13,15)(17,19)(21,22,27,23,26,30,25,29)(24,32,35,36,33,28,34,31)(6,12)(7,14)(11,20)(13,15)(24,33)(28,32)(31,36)(34,35) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.